Dr Herbert West writes: 20 years ago today, ID software released "Wolfenstein 3D", a remake of a classic Apple II game, "Return to Castle Wolfenstein". To celebrate, Bethesda Softworks on Wednesday released a free, browser-based version of the iconic first-person shooter, Wolfenstein 3D.
Users can pick which level they wish to play in the browser version, even the secret levels.Link to Original Source